Anatomy And Physiology Questions - The Autonomic Nervous System

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  • 1/38 Questions
    What type of neurotransmitter is used by the pathway represented in the figure? - ProProfs

    What type of neurotransmitter is used by the pathway represented in the figure?

    • Noradrenaline
    • Acetylcholine
    • Adrenalin
    • Dopamine
    • Serotonin
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Anatomy And Physiology Questions - The Autonomic Nervous System - Quiz
About This Quiz

Questions about the autonomic nervous system. Again introduced in the "Childhood" case unit, but also continued in the frame of treatments in "Young adult" and "Maturity 1"

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  • 2. 

    Postganglionic neurons from the otic ganglion supply the

    • Head

    • Heart

    • Lungs

    • Liver

    • Ureter

    Correct Answer
    A. Head
    Explanation
    Postganglionic neurons from the otic ganglion supply the head. The otic ganglion is a small parasympathetic ganglion located near the mandibular nerve. It receives preganglionic fibers from the glossopharyngeal nerve and sends postganglionic fibers to various structures in the head, including the parotid gland, the mucous membranes of the nose and mouth, and the blood vessels of the face. These postganglionic neurons help regulate blood flow, salivation, and other functions in the head region.

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  • 3. 

    A postganglionic neuron

    • Releases neurotransmitter at the effector cell

    • Has myelinated axons

    • Is the first part of an autonomic motor pathway

    • Has its cell body in the brain or spinal cord

    • Has its axons exiting the CNS through cranial nerves

    Correct Answer
    A. Releases neurotransmitter at the effector cell
    Explanation
    A postganglionic neuron releases neurotransmitter at the effector cell. This means that once the signal has been transmitted from the preganglionic neuron to the postganglionic neuron, the postganglionic neuron releases the neurotransmitter at the target cell or effector cell. This neurotransmitter then binds to receptors on the effector cell, transmitting the signal and causing a response. This is an important step in the autonomic motor pathway, where the postganglionic neuron carries the signal from the ganglia to the target organ or tissue.

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  • 4. 

    The output of the ANS does NOT control

    • Exocrine glands

    • Skeletal muscle

    • Cardiac muscle

    • Smooth muscle

    • Endocrine glands

    Correct Answer
    A. Skeletal muscle
    Explanation
    Skeletal muscle is not controlled by the output of the ANS. The ANS, or autonomic nervous system, controls involuntary functions of the body, such as the activity of smooth muscles, cardiac muscles, and exocrine glands. Skeletal muscles, on the other hand, are controlled by the somatic nervous system, which is responsible for voluntary movements. Therefore, the output of the ANS does not have any direct control over skeletal muscle activity.

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  • 5. 

    Which of the below responses is NOT caused by the paraympathetic division?

    • Decreased heart rate

    • Airway dilation

    • Decreased pupil diameter

    • Increased digestion

    • Increased urine production

    Correct Answer
    A. Airway dilation
    Explanation
    Airway dilation is NOT caused by the parasympathetic division. The parasympathetic division of the autonomic nervous system is responsible for rest and digest activities, which include decreased heart rate, decreased pupil diameter, increased digestion, and increased urine production. However, airway dilation is controlled by the sympathetic division, which is responsible for the fight or flight response.

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  • 6. 

    Which of the below response is NOT caused by the sympathetic division?

    • Increased heart rate

    • Airway constriction

    • Decrease blood flow to kidneys and gastrointestinal tract

    • Increased blood flow to skeletal and cardiac muscle, liver and fat

    • Increased blood glucose level

    Correct Answer
    A. Airway constriction
    Explanation
    Airway constriction is NOT caused by the sympathetic division. The sympathetic division of the autonomic nervous system is responsible for the "fight or flight" response, which involves increasing heart rate, redirecting blood flow to vital organs and muscles, and increasing blood glucose levels. However, airway constriction is caused by the parasympathetic division of the autonomic nervous system, which is responsible for the "rest and digest" response.

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  • 7. 

    These normally have the shortest preganglionic axons.

    • Sympathetic ganglia

    • Parasympathetic ganglia

    • Autonomic plexuses

    • White ramus

    • Gray ramus

    Correct Answer
    A. Sympathetic ganglia
    Explanation
    Sympathetic ganglia have the shortest preganglionic axons compared to the other options listed. Preganglionic axons are the nerve fibers that extend from the central nervous system to the ganglia, where they synapse with postganglionic neurons. In the sympathetic division of the autonomic nervous system, the preganglionic axons are relatively short and synapse in the sympathetic ganglia, which are located near the spinal cord. This allows for rapid transmission of signals from the central nervous system to the target organs or tissues, enabling the "fight or flight" response.

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  • 8. 

    Autonomic motor neurons regulate visceral activities by

    • Increasing activities in effector tissue

    • Decreasing activities in effector tissue

    • Changing direction of synapse in the axons

    • Both a and b

    • A, b and c

    Correct Answer
    A. Both a and b
    Explanation
    Autonomic motor neurons regulate visceral activities by both increasing and decreasing activities in effector tissue. This means that they can either stimulate or inhibit the activity of the target organs or tissues, depending on the specific needs of the body. Additionally, the statement does not mention anything about changing the direction of synapse in the axons, so this option is not relevant. Therefore, the correct answer is both a and b.

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  • 9. 

    Which is not an example of terminal ganglia?

    • Ciliary ganglion

    • Pterygopalatine ganglion

    • Submandibular ganglion

    • Otic ganglion

    • All are parasympathetic terminal ganglion

    Correct Answer
    A. All are parasympathetic terminal ganglion
    Explanation
    The given answer is correct because all of the options listed (ciliary ganglion, pterygopalatine ganglion, submandibular ganglion, and otic ganglion) are examples of parasympathetic terminal ganglia. Terminal ganglia are located near or within the target organ and contain the cell bodies of postganglionic parasympathetic neurons. These ganglia are responsible for regulating the parasympathetic innervation of specific organs or structures. Therefore, the statement "All are parasympathetic terminal ganglion" accurately describes the options provided in the question.

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  • 10. 

    Preganglionic neurons from which nerve supply the genitals?

    • Cranial nerve III

    • Cranial nerve VII

    • Cranial nerve IX

    • Cranial nerve X

    • Pelvic splanchnic nerve

    Correct Answer
    A. Pelvic splanchnic nerve
    Explanation
    The correct answer is the pelvic splanchnic nerve. The pelvic splanchnic nerve is responsible for supplying the genitals. It is a branch of the sacral spinal nerves and carries preganglionic parasympathetic fibers that innervate the pelvic organs, including the genitals. Cranial nerves III, VII, IX, and X do not supply the genitals.

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  • 11. 

    Which of the below terms describes an effector innervated by both the parasympathetic and sympathetic divisions?

    • Preganglionic stimulation

    • Biganglion excitation

    • Multi-autonomic output

    • Reciprocal innervation

    • Dual innervation

    Correct Answer
    A. Dual innervation
    Explanation
    Dual innervation describes an effector that is innervated by both the parasympathetic and sympathetic divisions of the autonomic nervous system. This means that the effector receives input from both branches, allowing for a balanced regulation of its activity. Dual innervation is important for maintaining homeostasis and coordinating various physiological processes in the body.

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  • 12. 
    What does this figure represent? - ProProfs

    What does this figure represent?

    • Somatic nervous system motor pathway

    • Somatic nervous system sensory pathway

    • Autonomic nervous system motor pathway

    • Autonomic nervous system sensory pathway

    • None of the above

    Correct Answer
    A. Somatic nervous system motor pathway
    Explanation
    This figure represents the somatic nervous system motor pathway. The somatic nervous system is responsible for voluntary movements and controls the communication between the central nervous system and the skeletal muscles. The motor pathway refers to the pathway through which signals are transmitted from the central nervous system to the muscles, resulting in movement. Therefore, the figure likely shows the pathway through which motor signals travel from the central nervous system to the skeletal muscles in the somatic nervous system.

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  • 13. 

    Which of the following are classified as cholinergic receptors?

    • Nicotinic and adrenergic receptors

    • Muscarinic and somatic receptors

    • Adrenergic and somatic receptors

    • Nicotinic and muscarinic receptors

    • Somatic and nicotinic

    Correct Answer
    A. Nicotinic and muscarinic receptors
    Explanation
    Cholinergic receptors are a type of receptor that respond to the neurotransmitter acetylcholine. Nicotinic receptors are found in both the central and peripheral nervous systems, and they are responsible for mediating the effects of nicotine. Muscarinic receptors, on the other hand, are primarily found in the peripheral nervous system and are responsible for mediating the effects of muscarine. Therefore, both nicotinic and muscarinic receptors are classified as cholinergic receptors.

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  • 14. 

    Interoceptors are found in

    • Blood vessels

    • Visceral organs

    • Muscles

    • All of the above

    • None of the above

    Correct Answer
    A. All of the above
    Explanation
    Interoceptors are sensory receptors that detect stimuli from within the body. They are responsible for sensing changes in blood vessels, visceral organs, and muscles. Therefore, the correct answer is "All of the above" as interoceptors can be found in all of these locations.

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  • 15. 

    What region does the superior cervical ganglion serve?

    • Abdominal

    • Pelvic

    • Heart

    • Head

    • Limbs

    Correct Answer
    A. Head
    Explanation
    The superior cervical ganglion serves the head region. This ganglion is a collection of nerve cell bodies located in the neck, specifically in the upper part of the sympathetic trunk. It receives signals from the spinal cord and sends them to various structures in the head, including blood vessels, sweat glands, and smooth muscles. These signals help regulate blood flow, body temperature, and other functions in the head region.

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  • 16. 

    Which of the following neurotransmitters bind to autonomic receptors?

    • Nicotine and adrenalin

    • Muscarine and acetylcholine

    • Noradrenalin and muscarine

    • Noradrenalin and acetylcholine

    • Somatin and nicotine

    Correct Answer
    A. Noradrenalin and acetylcholine
    Explanation
    Noradrenalin and acetylcholine are neurotransmitters that bind to autonomic receptors. Autonomic receptors are responsible for regulating involuntary bodily functions such as heart rate, digestion, and breathing. Noradrenalin is released by the sympathetic nervous system and binds to adrenergic receptors, while acetylcholine is released by the parasympathetic nervous system and binds to cholinergic receptors. Therefore, the correct answer is Noradrenalin and acetylcholine.

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  • 17. 
    Where is the right sympathetic trunk ganglion? - ProProfs

    Where is the right sympathetic trunk ganglion?

    • E

    • G

    • N

    • M

    • H

    Correct Answer
    A. G
    Explanation
    The right sympathetic trunk ganglion is located in the G position.

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  • 18. 

    Which of the below does NOT describe the sympathetic division?

    • Short preganglionic neurons

    • Ganglion in the head

    • Thoracolumbar output

    • Synapse with blood vessels

    • Stimulate sweat glands

    Correct Answer
    A. Ganglion in the head
    Explanation
    The sympathetic division of the autonomic nervous system is responsible for the "fight or flight" response. It is characterized by short preganglionic neurons, thoracolumbar output (meaning the preganglionic neurons originate from the thoracic and lumbar regions of the spinal cord), synapse with blood vessels, and the ability to stimulate sweat glands. However, it does not have ganglia in the head.

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  • 19. 

    These are structures containing sympathetic preganglionic axons that connect the anterior ramus of the spinal nerve with the ganglia of the sympathetic trunk.

    • Lumbar splanchnic nerve

    • Greater splanchnic nerve

    • Inferior cervical ganglion

    • White rami communicantes

    • Grey rami communicantes

    Correct Answer
    A. White rami communicantes
    Explanation
    White rami communicantes are structures that contain sympathetic preganglionic axons. These axons connect the anterior ramus of the spinal nerve with the ganglia of the sympathetic trunk. Therefore, white rami communicantes are the correct answer to this question.

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  • 20. 

    Autoomic tone is regulated by

    • Medulla oblongata

    • Cerebellum

    • Cerebrum

    • Vermis

    • Hypothalamus

    Correct Answer
    A. Hypothalamus
    Explanation
    The hypothalamus is responsible for regulating the autonomic tone. It controls various functions of the autonomic nervous system, such as heart rate, blood pressure, body temperature, and digestion. The hypothalamus receives information from different parts of the body and sends signals to maintain homeostasis. It also plays a crucial role in coordinating the body's response to stress and is involved in the release of hormones from the pituitary gland. Overall, the hypothalamus is essential for maintaining the balance and functioning of the autonomic nervous system.

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  • 21. 

    Which of the following is not considered a part of the prevertebral ganglia?

    • Coeliac ganglion

    • Terminal ganglion

    • Superior mesenteric ganglion

    • Inferior mesenteric ganglion

    • All are prevertebral ganglia

    Correct Answer
    A. Terminal ganglion
    Explanation
    The terminal ganglion is not considered a part of the prevertebral ganglia. Prevertebral ganglia are a group of ganglia located anterior to the vertebral column and are associated with the sympathetic nervous system. They include the coeliac ganglion, superior mesenteric ganglion, and inferior mesenteric ganglion. The terminal ganglion, on the other hand, is a ganglion located at the end of a nerve fiber and is associated with the parasympathetic nervous system. Therefore, it is not considered a part of the prevertebral ganglia.

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  • 22. 

    Which ganglion supplies the stomach with postganglionic neurons?

    • Middle cervical ganglion

    • Inferior cervical ganglion

    • Coeliac ganglion

    • Inferior mesenteric ganglion

    • Prevertebral ganglion

    Correct Answer
    A. Coeliac ganglion
    Explanation
    The coeliac ganglion supplies the stomach with postganglionic neurons. The coeliac ganglion is located near the coeliac trunk, which is a major artery that supplies blood to the stomach and other abdominal organs. This ganglion is part of the autonomic nervous system and plays a role in regulating the functions of the stomach, such as digestion and blood flow. Postganglionic neurons transmit signals from the ganglion to the stomach, helping to control its activity.

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  • 23. 

    Which nerve supplies the inferior mesenteric ganglion with preganglionic neurons?

    • Lumbar splanchnic nerve

    • Lowest splanchnic nerve

    • Greater splanchnic nerve

    • Cardiac plexus

    • Pulmonary plexus

    Correct Answer
    A. Lumbar splanchnic nerve
    Explanation
    The lumbar splanchnic nerve supplies the inferior mesenteric ganglion with preganglionic neurons. This nerve arises from the sympathetic trunk in the lumbar region and carries sympathetic fibers to the abdominal organs. The inferior mesenteric ganglion is located in the abdomen and receives these preganglionic fibers from the lumbar splanchnic nerve, which then synapse with postganglionic neurons in the ganglion.

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  • 24. 

    Acetylcholine is released by ________________ postganglionic neurons and is removed ____________ than noradrenaline.

    • Sympathetic and slower

    • Sympathetic and faster

    • Parasympathetic and slower

    • Parasympathetic and faster

    Correct Answer
    A. Parasympathetic and faster
    Explanation
    Acetylcholine is released by parasympathetic postganglionic neurons and is removed faster than noradrenaline. This is because acetylcholine is rapidly broken down by the enzyme acetylcholinesterase, which is present in the synaptic cleft. On the other hand, noradrenaline is removed through reuptake by the presynaptic neuron or by diffusion away from the synaptic cleft, which is a slower process. Therefore, the correct answer is "Parasympathetic and faster."

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  • 25. 
    Where is the right vagus nerve in the figure? - ProProfs

    Where is the right vagus nerve in the figure?

    • A

    • B

    • C

    • H

    • K

    Correct Answer
    A. A
    Explanation
    The right vagus nerve is located at position A in the figure.

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  • 26. 

    Which of the below conditions does NOT cause the longer lasting and more widespread sympathetic effects, compared to the parasympatethic division?

    • Greater divergence of sympathetic motor pathways

    • Acetylcholine is more rapidly removed from the synapse

    • Decreased blood flow to hypothalamus when sympathetic stimulation occurs

    • Catecholamine production from the adrenal gland

    Correct Answer
    A. Decreased blood flow to hypothalamus when sympathetic stimulation occurs
    Explanation
    Decreased blood flow to the hypothalamus when sympathetic stimulation occurs does not cause longer lasting and more widespread sympathetic effects compared to the parasympathetic division. The hypothalamus plays a crucial role in regulating the autonomic nervous system, including the sympathetic and parasympathetic divisions. When sympathetic stimulation occurs, increased blood flow to the hypothalamus is expected, not decreased blood flow. Therefore, decreased blood flow to the hypothalamus would not contribute to the longer lasting and more widespread sympathetic effects.

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  • 27. 

    Which of the below statments is NOT correct?

    • Preganglionic neurons form the first part of an autonomic motor pathway

    • Preganglionic neurons have their cell body in the brain or spinal cord

    • Preganglionic neurons have their axon exiting the CNS with a cranial or spinal nerve

    • Preganglionic neurons have myelinated axons

    • Preganglionic neurons form a gap junction with the postganglionic neuron

    Correct Answer
    A. Preganglionic neurons form a gap junction with the postganglionic neuron
    Explanation
    The correct answer is "Preganglionic neurons form a gap junction with the postganglionic neuron." This statement is not correct because preganglionic neurons form a synapse, not a gap junction, with the postganglionic neuron. A synapse is a specialized junction where signals are transmitted from one neuron to another, while a gap junction is a direct connection between the cytoplasm of two cells, allowing for the exchange of ions and small molecules.

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  • 28. 
    Where is the cardiac plexus in the figure? - ProProfs

    Where is the cardiac plexus in the figure?

    • A

    • B

    • H

    • I

    • J

    Correct Answer
    A. I
  • 29. 

    The coeliac ganglion supplies preganglionic neurons to

    • Lesser splanchnic nerve

    • Lowest splanchnic nerve

    • Superior mesenteric ganglion

    • Inferior mesenteric ganglion

    • Lumbar splanchnic nerve

    Correct Answer
    A. Superior mesenteric ganglion
    Explanation
    The coeliac ganglion supplies preganglionic neurons to the superior mesenteric ganglion. This ganglion is responsible for innervating the organs of the midgut, including the small intestine, cecum, ascending colon, and most of the transverse colon. The coeliac ganglion acts as a relay station, connecting the sympathetic preganglionic fibers from the thoracic spinal cord to the postganglionic fibers that innervate the superior mesenteric ganglion. This allows for the regulation of blood flow, secretion, and motility in the midgut.

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  • 30. 

    This is the largest autoonomic plexus

    • Superior mesenteric plexus

    • Renal plexus

    • Cardiac plexus

    • Coeliac plexus

    • Hypogastric plexus

    Correct Answer
    A. Cardiac plexus
    Explanation
    The cardiac plexus is the correct answer because it is the largest autonomic plexus. The cardiac plexus is a network of nerves located at the base of the heart, formed by branches from the sympathetic and parasympathetic nervous systems. It innervates the heart and plays a crucial role in regulating heart rate and cardiac function.

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  • 31. 

    This plexus is located anterior to the fifth lumbar vertebra and supplies pelvic viscera.

    • Inferior mesenteric plexus

    • Renal plexus

    • Coeliac plexus

    • Hypogastric plexus

    • Superior mesenteric plexus

    Correct Answer
    A. Hypogastric plexus
    Explanation
    The hypogastric plexus is located anterior to the fifth lumbar vertebra and supplies the pelvic viscera. The other options listed do not match this description. The inferior mesenteric plexus is located in the abdomen and supplies the descending colon and rectum. The renal plexus is located around the kidneys and supplies the renal arteries and ureters. The coeliac plexus is located in the abdomen and supplies the stomach, liver, and other abdominal organs. The superior mesenteric plexus is located in the abdomen and supplies the small intestine and part of the large intestine. Therefore, the correct answer is the hypogastric plexus.

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  • 32. 

    Postganglionic neurons from what ganglion supply the lacrimal gland?

    • Ciliary ganglion

    • Pterygopalatine ganglion

    • Submandibular ganglion

    • Otic ganglion

    • Coeliac ganglion

    Correct Answer
    A. Pterygopalatine ganglion
    Explanation
    The lacrimal gland is supplied by postganglionic neurons from the Pterygopalatine ganglion. This ganglion is located in the pterygopalatine fossa, which is a small space in the skull. The postganglionic fibers from this ganglion travel to the lacrimal gland and are responsible for its innervation.

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  • 33. 

    Preganglionic neurons are supplied to the submandibular ganglion by which cranial nerve?

    • Cranial nerve III

    • Cranial nerve VII

    • Cranial nerve IX

    • Cranial nerve X

    • Cranial nerve XI

    Correct Answer
    A. Cranial nerve VII
    Explanation
    Preganglionic neurons are supplied to the submandibular ganglion by Cranial nerve VII, also known as the facial nerve. This nerve provides the preganglionic parasympathetic innervation necessary for the function of the submandibular and sublingual salivary glands, facilitating salivation.

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  • 34. 
    Where is the lesser splanchnic nerve in the figure? - ProProfs

    Where is the lesser splanchnic nerve in the figure?

    • C

    • D

    • K

    • E

    • L

    Correct Answer
    A. D
    Explanation
    The correct answer is D because in the figure, the lesser splanchnic nerve is labeled as D.

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  • 35. 
    Where is the hypogastric plexus in the figure? - ProProfs

    Where is the hypogastric plexus in the figure?

    • J

    • K

    • D

    • F

    • N

    Correct Answer
    A. N
  • 36. 

    These send postganglionic axons to the parotid salivary gland.

    • Ciliary ganglia

    • Pterygopalatine ganglia

    • Submandibular ganglia

    • Otic ganglia

    • None of the above

    Correct Answer
    A. Otic ganglia
    Explanation
    The otic ganglia are responsible for sending postganglionic axons to the parotid salivary gland. The ciliary ganglia are responsible for controlling the muscles of the eye, the pterygopalatine ganglia are responsible for controlling the lacrimal gland and nasal mucosa, and the submandibular ganglia are responsible for controlling the submandibular and sublingual salivary glands. Therefore, the correct answer is the otic ganglia.

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  • 37. 
    Where is the superior mesenteric ganglion in the figure? - ProProfs

    Where is the superior mesenteric ganglion in the figure?

    • E

    • F

    • G

    • M

    • N

    Correct Answer
    A. M
    Explanation
    The superior mesenteric ganglion is located at position M in the figure.

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  • 38. 

    Which of the below does NOT describe the sympathetic division?

    • Long preganglionic neurons

    • Ganglion near vertebrae

    • Cranialsacral output

    • Synapses with blood vessels

    • Does not stimulate sweat glands

    Correct Answer
    A. Cranialsacral output
    Explanation
    The sympathetic division of the autonomic nervous system is characterized by having short preganglionic neurons and long postganglionic neurons, with ganglia located near the spinal cord (near vertebrae), not craniosacral output. Craniosacral output is associated with the parasympathetic division, not the sympathetic division. The sympathetic division also synapses with blood vessels and stimulates sweat glands, unlike what's suggested in the last option.

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